Search a number
-
+
230352690 = 2359779159
BaseRepresentation
bin11011011101011…
…10011100110010
3121001110010111010
431232232130302
5432432241230
634505131350
75464652121
oct1556563462
9531403433
10230352690
11109034427
1265189b56
1338953989
1422843ab8
15153529b0
hexdbae732

230352690 has 32 divisors (see below), whose sum is σ = 558552960. Its totient is φ = 60793344.

The previous prime is 230352679. The next prime is 230352739. The reversal of 230352690 is 96253032.

It is a super-2 number, since 2×2303526902 = 106124723580472200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36670 + ... + 42489.

It is an arithmetic number, because the mean of its divisors is an integer number (17454780).

Almost surely, 2230352690 is an apocalyptic number.

230352690 is an abundant number, since it is smaller than the sum of its proper divisors (328200270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230352690 is a wasteful number, since it uses less digits than its factorization.

230352690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79266.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 230352690 is about 15177.3742788402. The cubic root of 230352690 is about 613.0055822794.

The spelling of 230352690 in words is "two hundred thirty million, three hundred fifty-two thousand, six hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 97 194 291 485 582 970 1455 2910 79159 158318 237477 395795 474954 791590 1187385 2374770 7678423 15356846 23035269 38392115 46070538 76784230 115176345 230352690